What may be the problem is you are trying to re-register the phone with the other phone's ID. Place the phone you are registering in the base or charger and the phone ID will appear. Then once you have confirmed the ID re-register it with that ID. Also, ensure the new batteries have been charged for at least 6 hours. Do you still have the manual or would you like a copy?

Have you tried reseting the base unit? They way to do that is unplug the ac adapter to the unit for about 10 minutes from the base. Then try the registration again - you must ensure that the unit ID of the phones are the correct unit numbers to register. I do not understand your comment - This is not the problem.

Ask an Electronics Technician

Get a Professional Answer. 100% Satisfaction Guaranteed.

131 Electronics Technicians are Online Now

Type Your Consumer Electronics Question Here...

characters left:

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.